All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762247

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5ec4714176c86955536a7da110b8e7522b120ccb79b7334820fd80fec94354b5


Bot(s) for this bug's original alert(s):

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969253309573118144

=== Auto-CCing suspected CL author bcwhite@chromium.org ===

Hi bcwhite@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Brian White
  Commit : 1278570bd438b22d1a703d67d441d813839d44ac
  Date   : Tue Sep 05 01:25:16 2017
  Subject: Revert "Do histogram validation after every JNI call."

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_raster_cpu_time_per_frame/infinite_scrolling.html
  Change       : 12.15% | 0.810862234568 -> 0.909353083151

Revision             Result                     N
chromium@499528      0.810862 +- 0.0161175      6      good
chromium@499533      0.807394 +- 0.0166091      6      good
chromium@499536      0.819805 +- 0.0539921      6      good
chromium@499537      0.914369 +- 0.0269363      6      bad       <--
chromium@499538      0.909353 +- 0.01471        6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=infinite.scrolling.html thread_times.key_silk_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969253309573118144


For feedback, file a bug with component Speed>Bisection

 Issue 762249  has been merged into this issue.

This was expected.  The CL that caused it has already been reverted.

 Issue 762274  has been merged into this issue.

 Issue 762273  has been merged into this issue.

 Issue 763330  has been merged into this issue.

 Issue 765119  has been merged into this issue.